Is it possible to send commands to an existing xterm process?

Question

I have a running xterm and I want to get a program to pipe some commands to it. Is this possible? If yes, how could this be done?

Answer 1

Not without help. Someone recently asked a similar question about screen. It turns out that screen can accept commands, as discussed in Run commands in screen after creating one per bash.

So, you could run (a named session of) screen in an xterm and send commands to that.